By ESPNSTAR.com staff
Robinho has been reported to be keen on a move back to his former side back in Brazil, with Neymar also urging him to return to the Sao Paulo side.
Ribeiro revealed that they are making concrete moves to bring the Brazil international from AC Milan.
"Robinho wants to return to Brazil and for him that means returning to Santos," Ribeiro told TV O Povo de Fortaleza.
"We have presented a written offer, though there is a difference between what the player and the club are asking for."
Robinho made over 100 appearances for Santos before moving to Real Madrid in 2005, but despite the player's apparent love for the club, the president was quick to concede negotiations are likely to be tough.
"It can be circumvented, but it is not a simple task," he said.
"It is a battle that must have results by the end of this week."